Dyeing apparatus



Feb. 24, 1931. c.A K. DUNLAP 1,793,736

DYEING APPARATUS Filed May l5, 1928 15 dye is o through the thread.

Patented Feb. 24, 1931 UNITED STATES PATENT OFFICE K. DUNLAP, OF HARTSVILLE, SOUTH` CAROLINA, ASSIGNOB. TO SONOCO v lPRQDUCHJS COMPANY, F HARTSVILLE, SOUTH CARDLINA, A CDRPORATION OF SOUTH CAROLINA DYEING APPARATUS Application led Hay 15, 1928. Sexe No. 2??,981.

The present invention relates to dyeing ap paratus and particularly to apparatus designed and constructed for dyeing thread or yarn in the form of packages.

It is now becoming general practice to dye thread or yarn in the form of packages wound on perforated cores. The cores with their packages wound thereon are mounted on perforated d e liquor circulation pipes in 0 a dyein vat. ye liquor is forced through the per orations of the cores and through the packages, either inwardly or outwardly, by suction or pressure, or combinations of these. Then the drying and setting of the often accomplished by circulating hot or cold air therethrough in the same manner. The circulation pipes pass through the cores, which are mounted thereon by supporting or securing means which also serve to block the end openings against the passage of dye liquor, except, of course, the dye liquor which flows through the circulation 1 e.

p ilhe object of the present invention is to provide an improved securing means wherey either a cylindrical or conical thread core may be supported upon a dye liquor circula'- tion pipe. My. improved supporting means is particularly useful when the cores are fabricated of paper or other deformable material. Such tubes or cores are liable to be softened somewhat during the dyeing process, particularly when high temperatures of dye liquor are employed. The ends of the cores'tend to be stretched or deformed such as to bell out the material, especially under pressure, and permit leakage through the end openings of the core, thus decreasing the iow In this respect the leakage of the drying air is even greater than the leakage of the dye liquor.

However, by means of my improved thread core supporting devices, a paper or compo- 5 sition tube may be so mounted that it will at all times retain its proper relationship with the dye liquor circulation pipe and will not permit leakage around the ends of the tube. Other objects and features of novelty will be apparent as the following description proceeds, when taken in connection with the accompari ying drawings, in which:

lf`igure l is a longitudinal section of a dye liquor circulation pipe with its associated thread core mounted thereon according to one form of the invention;

Figure 2 is a similar View showing another form of the invention for mounting a conical thread core; and

Figure 3 is a cross section taken along the line 3 3 of Figure 2.

Referring more particularly to the drawings, the invention is illustrated in connection with a dye liquor circulation pipe 25, a portion of which is perforated as shown to permit the circulation of dye liquor therethrough. The pipe 25 served to support a. perforated thread core 26, upon which a thread package 27 has been wound prior to the dyeing operation.

The dye liquor circulation pipe 25 is connected in any desired manner to a main supply conduit 20, so as to communicate therewith, and as shown in F ig. l, a hollow threaded plug 31 is mounted in an aperture 32 in the main supply conduit 2O and the pipe 25 is brazed or otherwise secured inside the plug 31 in such a manner that a smooth bore is produced. The outer end of the pipe 25 is threaded and closed as at 33. i

To mount the perforated thread. cores 26 on the pipe 25, ferrules 34 and 35 are provided. Each of these ferrules is provided with an axial boss 37'wl1ich is substantially cylindrical and of such diameter as to closely lit the end of the core 26 when the core is placed thereover. Each of the ferrules is also provided with a radial shoulder 38, which abuts the end of the core 26, and the boss and the shoulder form a seat for the end of the core. However, in the referred form of the invention an annular ange 39 is provided, which is substantially cylindrical and provided with an inner diameter such as to snugly iit the outside surface of the core 26. With this arrangement, the boss, shoulder and flange form a groove which receives the end of the core to give it very firm support.

The ferrule 34 is preferably fixed on the pipe 25 in the position shown so as to be subsion so that its ends are snugly received by both ferrules, preventing leakage around the ends of the cores. In the form shown the plug 33 is threaded as at 40 and the ferrule 35 is tapped as at 41. It should be noted that the boss 37 is substantially cylindrical andv has no tendency to rupture the core, and that the annular fiange 28 serves to confine the outer surface of the core. With this arrangement the core may be compressed without exerting any radial force tending to rupture the thread core.

Furthermore, it should be noted that the ferrule 35 is solid, being drilled only part of the Way through, where it is tap ed to receive the plug 33. Hence, even t ough the threads 40 and 41 do not themselves form a tight joint, no leakage will occur at this point.

The mounting above described is peculiarly suitable for thread packages having cylindrical cores, but it is equally within the urview of my invention to provide a mount- Ing for thread packages having conical cores. The arrangement for this purpose is shown in Figures 2 and 3. In these figures the conduit 20, plug 31, threads 32, perforate pipe 25 and outer plug 33 are identical with those previously described.

In order to mount conical perforated thread. cores such as indicated at 45, a modified ferrule 46 is provided. The ferrule 46 may be mounted on the pipe 25 in any desired manner, but in the preferred form shown it is integral with the plug 31 and the pipe 25. The ferrule 46 is of a diameter somewhat greater than the base of the core 45, and is provided with an axial boss 47 which snugly receives the inner surface of the base of the core 45, the end of which abuts against a radial shoulder 48.. An annular flange 49 confines the outer` edge of the base of the core, so that the abutment 47, the shoulder 48 and the flange 49 define a groove in which the base of the core is seated.. The outer or -smallerend of the core 45 is supportedby a ferrule 50 which issomewhat similar to the ferrule 35 shown in Figure 2. The ferrule 50 is solid, being drilled only partially vthrough where it is tapped tolreceive the plug 33. This ferrule has an axial boss 51 which receives the inner surface of the small end of the core 45, as well as a radial shoulder 52 and an annular ilange 53. It will be readily apparent that the ferrules 46 and 50 serve to support the conical thread core 45 in the same manner that the ferrules 34 and 35 support the cylindrical thread core 2 n While two embodiments of the invention have been shown and described in great detail for the purposes of full and complete disclosure, the breadth of the invention is not limited by any of the details shown, but includes such embodiments of the broad idea as come Within the scope of the following claims.

Having thus described the invention, what is claimed as new and desired'to be secured by Letters Patent is:

1. In a dyeing apparatus, in combination, a fluid conduit, an elongated s indle-like member rejecting therefrom, t e outer end of whic is threaded, a tubular perforated openended and relatively thin-walled ber thread core encircling said member and having its inner wall spaced therefrom, said member 1 having an aperture formed therein through which fluid may pass from said conduit into the s ace between the exterior surface of the inem er and the thread core, or in the reverse direction, and means for supporting the thread core and sealing the ends of the same against the passage of fluid, said means comprising two spaced elements supported upon the elongated member, one element being imperforate and having threaded engagement with the outer end of said member and the second element encircling the said member at a oint between the outer element and conduit and makin a Huid tight joint with the member, said e ements having mutuall facing annular grooves within which the ends of said core project, the diameters of the inner and outer walls of each groove being sub` stantially the same as the diameters of the inner and outer walls of the adjacent ends of the core, respectivel the ends of the core being firmly supporte radial distortion in both directions, due to uid ressure, b the walls of the grooves, and t e ends o the core being seated on the bottoms of the grooves, whereby the core is so supported that all fluid passing through said aperture in a dyeing or drying process is caused to ow throu h the perforations in the core, none flowing t rough the ends thereof even thou h the core may be softened as the result of t e action of the treatment iiuid thereon. l l,

2. In a dyeingI apparatus, in combination, a iiuid conduit, an e ongated spindle-like member projecting therefrom, a tubular erforated open-euded` and relatively thin-walled -fiber thread core ,encircling said member and having its inner wallspaced theref; om, said member having au. aperture formed therein through which fluid may pass from said conduit into the space between the exterior surface of the member and the inner wall ofthe encircling thread core, or in the reverse direction, and means for supporting the thread core and sealing the ends of the same against the passage of duid, said means comprising at all times againstlos iso

two spaced elements supported upon the elongated member, one element being adjustabl detachably secured to the outer end of sai member and the second element encircling the said member at a point between the sure and substantially all of the fluid passing through said aperture in a dyeing or drying process caused to flow through the perfora tions in the core, and the core ends are maintained intact despite possible softening of the Eber of the core.

In testimony whereof I'hereunto ailix my signature.

CHARLES K. DUNLAP. 

